Just as his ex-girlfriend Selena Gomez is on stage with her former flame DJ Zedd, Justin Bieber shares not one – but two – videos of himself singing ‘Nothing Like Us’, which fans have always thought was about Selena.

In raw clips on Instagram, Bieber gives an emotional renditions of the song.

Could the Sorry star be trying to get a message across to his ex?

Selena was performing with Zedd, 26, for a surprise performance at Z-100’s Jingle Ball in New York, and she was later pictured kissing him affectionately backstage.

The 22-year-old gave Zedd a shout-out after their performance, as she wrote: “My babes @zedd and I performing tonight for @z100newyork@iheartradio SO grateful to wrap up this year with the best people. Thank you NY!!”

Zedd returned the favour, by calling the brunette beauty his “favourite Mexican taco” on his own Instagram page.

Justin and Selena broke up over a year ago, and have both been linked to other partners, but they recently sparked rumours that they were reuniting after they were spotted on a date night and Justin serenaded her with a rendition of ‘My Girl’.

The star is singing 'Nothing Like Us' - which fans think is about Selena (Image: Instagram @justinbieber)

It didn’t last long though, as Justin was trying to hunt down a mystery girl on Instagram earlier this week – sending fans into a meltdown – while Selena was linked to One Direction star Niall Horan.